<template>
  <el-form ref="deptForm" :model="form" :rules="rules" label-width="120px">
    <el-form-item label="部门名称" prop="name">
      <el-input v-model="form.name" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门编码" prop="code">
      <el-input v-model="form.code" style="width:80%" placeholder="1-50个字符" />
    </el-form-item>
    <el-form-item label="部门负责人" prop="manager">
      <el-select
        v-model="form.manager"
        style="width:80%"
        placeholder="请选择"
      >
        <el-option
          v-for="item in Employeeslist"
          :key="item.id"

          :value="item.username"
          :label="item.username"
        />

      </el-select>
    </el-form-item>
    <el-form-item label="部门介绍" prop="introduce">
      <el-input v-model="form.introduce" style="width:80%" placeholder="1-300个字符" type="textarea" :rows="3" />
    </el-form-item>
    <el-form-item>
      <el-button type="primary" size="small" @click="hSubmit">确定</el-button>
      <el-button size="small" @click="$emit('close')">取消</el-button>
    </el-form-item>
  </el-form>
</template>

<script>
import { getEmployeesSimple } from '@/api/employees'
import { addDepartments, getDepartmentsDetail, updateDepartments } from '@/api/departments'
export default {
  // 子组件
  props: {
    id: {
      type: String,
      required: true
    },
    isEdit: {
      type: Boolean,
      required: true
    },
    originList: {
      type: Array,
      required: true
    }
  },
  data() {
    const validCode = (rule, value, callback) => {
      console.log('validCode....', value)
      console.log(value, 'value')
      // value就是当前用户输入的编码，它不能与现有的编码数据（originList）重复
      // 如果重复，就验证不通过
      // if(value能与现有的编码数据（originList）重复) {
      // 1. 从originList（[{id, pid,name, code},{id, pid,name, code}]）中找出全部的编码数据
      let existCodeList = this.originList.map(item => item.code)
      console.log('existCodeList', existCodeList)
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.id).map(item => item.code)
      }
      // 2. 检查value 是否存在其中
      if (existCodeList.includes(value)) {
        callback(new Error('编码' + value + '已经存在'))
      } else {
        callback()
      }

      // existCodeList.includes(value)
      //   ? callback(new Error('编码' + value + '已经存在'))
      //   : callback()
    }

    // 校验部门的名称在同级不能重复
    const validName = (rule, value, callback) => {
      console.log(value, 'value')
      console.log(this.originList, 'this.originList')
      let exitNameList = this.originList.filter(item => item.pid === this.id).map(item => item.name)
      //  兄弟部门名称不能重复
      if (this.isEdit) {
        // 所有部门的数据 orignList
        const curDepartment = this.originList.find(item => item.id === this.id)
        const pid = curDepartment.pid
        // 所有的兄弟部门的pid是一样 朝所有的兄弟 包括啦自己
        const brothers = this.originList.filter(item => item.pid === pid)
        // 排除自己
        exitNameList = brothers.filter(item => item.id !== this.id).map(item => item.name)
      }
      console.log(exitNameList, 'exitNameList')
      if (exitNameList.includes(value)) {
        callback(new Error(`部门名称:${value}已存在`))
      } else {
        callback()
      }
    }
    return {
      form: {
        name: '',
        code: '',
        manager: '',
        introduce: ''

      },

      rules: {
        name: [
          { required: true, message: '请输入部门名称', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1-50的字符', trigger: 'blur' },
          { validator: validName, trigger: 'blur' }
        ],
        code: [
          { required: true, message: '请输入部门编码', trigger: 'blur' },
          { min: 1, max: 50, message: '请输入长度是1-50的字符', trigger: 'blur' }
        ],
        introduce: [
          { required: true, message: '请输入部门介绍', trigger: 'blur' },
          { min: 1, max: 300, message: '请输入长度是1-300的字符', trigger: 'blur' }
        ],
        manager: [
          { required: true, message: '请选择部门负责人', trigger: ['blur', 'change'] },
          { validator: validCode, trigger: 'blur' }
        ]
      },
      Employeeslist: []
    }
  },
  // 解决数据不更新的方式3,使用watch侦听ID变化
  // watch: {
  //   'id': function(newVal, oldVal) {
  //     console.log(newVal, oldVal)
  //     this.loadDepartmentsDetail()
  //   },
  //   deep: true,
  //   setImmediate: true
  // },
  created() {
    this.loadEmployeesSimple()
    if (this.isEdit) {
      this.loadDepartmentsDetail()
    }
  },
  methods: {
    resetForm() {
      // 调用子组件的重置表单的方法
      this.$refs.deptForm.resetFields()
    },
    async loadDepartmentsDetail() {
      try {
        const res = await getDepartmentsDetail(this.id)
        console.log(res, 'getDepartmentsDetail')
        this.form = res.data
      } catch (error) {
        console.log(error)
      }
    },
    hSubmit() {
      // this.doAdd()
      this.$refs.deptForm.validate(valid => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    async  doEdit() {
      try {
        const res = await updateDepartments({ ...this.form })
        console.log(res, 'updateDepartments')
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.message)
        // 子传父
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async doAdd() {
      try {
        const res = await addDepartments({ ...this.form, pid: this.id })
        console.log(res, 'addDepartments')
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.message)
        // 子传父
        this.$emit('success')
      } catch (error) {
        console.log(error)
      }
    },
    async loadEmployeesSimple() {
      try {
        const res = await getEmployeesSimple()

        console.log(res, 'getEmployeesSimple')
        if (res.code === 10000) {
          this.Employeeslist = res.data
        }
      } catch (error) {
        console.log(error)
        this.$message.error(error)
      }
    }
  }
}

</script>
